Window-jack



(No Model.)

G. P. SHEE'HAN 8v D. A. MULLIN. WINDOW JACK.

No. 484,467. Patented Oct. 18,1892.

UNITED STATES PATENT OFFICE.

GEORGE F. SI-IEEHAN AND DANIEL A. MULLIN, OF MANCHESTER, NEW

HAMPSHIRE.

WINDOW-JACK.

SPECIFICATION forming part of Letters Patent No. 484,467, dated October 18, 1892. Application filed October 29, 1891. Serial No. 410,208. (No model.)

T0 at whom it may concern.-

Be it known that we, GEORGE F. SHEEHAN and DANIEL A. MULLIN, citizens of the United States, residing at Manchester, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Window-Jacks; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

Our invention relates to an improvement in window-jacks or devices for use in connection with windows, whereby a platform or rest is provided temporarily outside of the window to enable a person to stand thereon and accomplish a certain desired work in connection with the window, such as painting, glazing, cleaning, washing, or other similar kinds of work which often have to be performed at the outside of the window; and it consists in the construction, arrangement,.and combination of the several parts, substantially as will be hereinafter described and claimed.

In the annexed drawings, illustrating our invention, Figure 1 is a perspective view of our improved window-jack. Fig. 2 is an enlarged vertical cross-section of the same when represented in operative position in connection with a window-frame. Fig. 3 is a detail bottom plan view showing certain specific details of construction.

v Similar letters of reference designate corresponding parts throughout the different figures.

In carrying our invention into practical effect we provide a frame, substantially rectangular in form, consisting, essentially, of the two parallel side bars A A, situated in a horizontal position and carrying at their outer ends a fiat board or seat B, upon which the user of the device may sit' or stand, as occasion requires, said part B being of suitable width and strength for the purpose. I

E E designate a pair of movable arms located inside of the bars A A, parallel therewith and pivoted thereto at their outer ends, beneath seat B, by means of suitable pivotpins 6, said movable arms E Ebeing con nected by a transverse strip 6. The movable arms E E are therefore capable of vertical adjustment to serve the purposes of our device, being readily placed either in the position shown in Fig. 1, where they are in coincidence with the sides A A, or dropped into the position shown in Fig. 2, where they serve as braces, performing their natural function in the structure. The free or movable ends of the arms E are made pointed, right-angled, or wedge-shaped at I, as shown, the angle of the end being a right angle, with its vertex near the middle of the end of the arm, so that said right-angled end can fit neatly into the ordinary right-angled rabbet D, generally found on a stone or wooden sill of a brick, frame, or other building, an example of which is delineated in Fig. 2, and when the wedgeshaped end is thus in accurate engagement with the rabbeted sill the arms E E will occupy inclined positions, as shown in Fig. 2. The arms E E are, furthermore, provided on their under side with short angular bars H, the angular ends of which are adapted to fit close against the edge of the sill, and thus assistin keeping the bars E in proper position. These bars H are slotted, and through their slots pass bolts projecting from the arms E. These bolts have nuts. Bars H therefor provide automatic slides, which are intended for use only when the jack is employed in connection with windows of wooden buildings. In this case the lower part of the wedge-shaped arm rests upon the sill of the window, and when the slides are pushed down into the position shown in Fig. 2 they strike against the outside edge of the window-sill and are firmly held in place by the jack and whatever may rest upon it. These slides are pushed back automatically when the jack is used on stone or brick buildings, because with such buildings it is not required.

F F designate slotted pivoted braces, which serve the purpose of holding the arms E in position. These braces F are pivoted at their outer ends to slotted plates G, which are securely fastened to the inside faces of the inner ends of side bars A A, said plates Ghaving the slots g, which are in coincidence with similar-shaped slots in the side bars A. The braces]? have the longitudinal slots f, which at the opposite ends of arms Fthat is to say, at those ends nearest to the arms E- are looped or curved at f The slots f receive the rigid bolts 1', projecting horizontally from the inside faces of the movable arms E, said bolts being provided with heads or thumb-nuts or any desired kind of setscrew or similar device, so that the slotted bars may notbecome disengaged from thepin. A It will be seen that when the arms E are dropped the pins or bolts 1 will slide along through the slots f in the slotted braces F, and when the ends of the slots f are reached the bolts I may be thrust into the looped slot ends -f', thus causing the! bracesi-F to have a firm bearing at each end, and in effect locking the said lower ends of thebraces F to the barsE for the time being, while the jack is being used.

Whenever it is desiredto *refoldorlit'ti the arm s'E E, "it can be easily done-'by manipulating the jack so as to movethe bolts -l over.- into the main-slots-f, and thusallowing the braces F to resume-their positions alongside 1 of the arms E, as shown-in-Fig. 1.

C design-ates a bar which is adapted topass thrbugh'theslotted plates'G,'and also through the sides A, as shown in Fig. 1. This bar is located on the inside of thewindow-frameandserves as a brace or anchor to hold-*t-he jaclr firmly at-thatpoindas shown inFig. 2.

' A canvas; covering 0 may be" employed i n connectionxwith ourimproved jack by attach ingit to the under side ithereofyas-shown in dotted'lines-in Fig: 1 and in f all lines in Fig: 3, the object of the canvas coveringbeingto enable women to use the device-with'greater' facility.

It will beobserved-thatthe piVotse for-Lhe' movable armsE and also the slot-hol'es' in the side'bars A are surrounded with iron t acings;- said ifacings in the case of the SIOE-hOI'GS tiD thebars A being the plates G." These -ironsare -for-thepurpose-of obviating the s-plitti ng of theframe and'agiving greater security to the-construction thereof; Theymaybe omit ted; however, when desiredsl The slotted braces instead of being pivoted to the-plates G may be pivoted directly to the side bars-A. Furthermore, it will be observed" that, al-- though the' braces F have-been described as being movable and the arms Erlikewise as-- movable, yet this construction is more for the convenienceof carriage and of storagethan for any'specialpurpose inthe actnal nse of the jack", and therefore this movable or ad justable feature maybe dispensed-with;if de--- sired, and the braces F may be-intheform of rigidfironrods, rigidly holding' the arms E in their proper inclinedpositionn The lengthof the bar G is considerably great-er than-thaxt of any, particular window, so that-it may be adapted foruse with windows-of difie'rent si'zes:- The slat e, which is fastened-tot-he*uppersideof' the arms-E forthepurpose of making them stifler; serves, alsoyas a rest forthefeet of theoperator, and also as a guard-for a pail or'other vessel that maybe set on the windowfrom falling out.

adOW,*-;Whil6 the arms -E being in an inclined oted to the' sidesA A and connected-by the The use of the window-jack which we have thus described will be clearly evident from the foregoing description. When it is in its folded position, the parts occupy the relation sill. T Sliding bar 0 acts to anchor the jack at a point inside of the window by bracing firmly against the inside portions of the winposition serve as .braces, having their lower ends "engaging the sill so that the seat B is held firmly in a proper position outside of the window, adjacent-thereto 'in-a convenient-sit nation-to permita person to :sitmr stand thereonand perfot-manydesired: work; r

Having thlrs describedouninvention, what' we-claim as new,-and-desire to secure by Let-- ters- Patent; is

1. The herein-described platform forusein connection with work on -the'outside of win-i dowsand-window-frames,- which consists in I the combination of the main frame provided with the seat,=the inclined arms having their lowerends wedgeshapedand engaging the window-sills, braces connecting i said armswith the= main frammand ahorizontal sliding. bar-passing through slots in the sides of their main 'firame-and adapted to anchor the'devioe ata point -inside of thewindow-livame sub-11cc stantially as described. H

2. The herein-describedwindow-jack, oom-- sisting of the side bars, the=seatsecu'red therev on,- the* slidinganchoring ban which passesthrough slots in the side bars of the 'main 1' frame, the pivoted-"arms H inside -the main frame suitably connected together, and "the slotted-braces pivoted to the main side bars and engaging themovable armsflubstan'tially as-described 3. In a windowjack, *the combination of the-side bars -A A and seat B, the sliding bar C,-passi-ng through slots in bars A A, the arms E E,pivoted to the sides A A and having the rectangular wedge-shaped ends I, and" the braces F, I connected -to the bars -A and the armsE, substantially as described.

4. The combination, in a windowjack-,'of" the sidesxA A and-seatB, thearms'E E, piv- In testimonywhereofwe affix oursignatures in presence-of two witnesses.

GEORGE-- F. SHEEHAN.

DANIEL A. MULISINJ Witnessesr THOMAS HACKIN," B. P. OILLEY. 

